The book is Hoodoo Herb & Root Magic: A Materia Magica Of African-American Conjure And Traditional Formulary Giving The Spiritual Uses Of Natural Herbs, Roots, Minerals, And Zoological Curios by Catherine Yronwode.
Hoodoo Herb & Root Magic is perhaps the best book on the market with regards to the magical uses of herbs, roots, and natural items, especially the use of such in the practice of Hoodoo or Conjure. The book is written in an encyclopedic fashion, with major herbs, roots, minerals, and animal parts having their own listings complete with official scientific names as well as suggested workings. Included are also black and white drawings of some of the herbs, roots, and other items. The bad things concerning the book are the spelling, grammar, and capitalization mistakes, which appear to be a trademark of the author. Additionally, there is much information that could have easily been included in this book but which for some reason was not. The individual listings could also easily have been expanded with additional uses and workings.
On a scale of 1 to 10, with 1 being the lowest and 10 being the highest, I give the book an 8. Hoodoo Herb & Root Magic is definitely a must-have for every practitioner of the magical arts. However, if you are outsider to magic or are looking for a scholarly work, you may be dissapointed.